Add nonfree licenses.

* nonguix/licenses.scm: New file.

nonguix/licenses.scm

@@ -0,0 +1,41 @@
+;;; Copyright © 2019 Alex Griffin <a@ajgrf.com>
+;;;
+;;; This program is free software: you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+(define-module (nonguix licenses)
+  #:use-module (guix licenses)
+  #:export (nonfree
+            undistributable))
+
+(define license (@@ (guix licenses) license))
+
+(define* (nonfree uri #:optional (comment ""))
+  "Return a nonfree license, whose full text can be found
+at URI, which may be a file:// URI pointing the package's tree."
+  (license "Nonfree"
+           uri
+           (string-append
+            "This a nonfree license.  Check the URI for details.  "
+            comment)))
+
+(define* (undistributable uri #:optional (comment ""))
+  "Return a nonfree license for packages which may not be redistributed, whose
+full text can be found at URI, which may be a file:// URI pointing the
+package's tree."
+  (license "Nonfree Undistributable"
+           uri
+           (string-append
+            "This a nonfree license.  This package may NOT be redistributed "
+            "in prebuilt form.  Check the URI for details.  "
+            comment)))